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LMULT (Super FX): Difference between revisions
From SnesLab
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|ALT2 | |[[ALT2]] | ||
|O/V | |[[O/V]] | ||
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'''LMULT''' is a signed multiplication [[Super FX]] instruction. The exact speed depends on the state of the [[CFGR]] register. | |||
LMULT utilizes the 8-bit multiplier four times.<sup>[3]</sup> | |||
=== See Also === | === See Also === | ||
* [[FMULT]] | * [[FMULT]] | ||
* [[UMULT]] | |||
* [[Partial Product Buffer]] | |||
=== External Links === | |||
# Official Nintendo documentation on LMULT: [https://archive.org/details/SNESDevManual/book2/page/n229 page 2-9-73 of Book II] | |||
# example: [https://archive.org/details/SNESDevManual/book2/page/n230 page 2-9-74 of Book II], lbid. | |||
# https://archive.org/details/SNESDevManual/book2/page/n155 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category: | [[Category:Super FX]] |
Revision as of 12:11, 22 December 2023
Basic Info | |||||||
---|---|---|---|---|---|---|---|
Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
3D9F | 2 bytes | 10 or 14 cycles | 10 or 14 cycles | 5 or 9 cycles |
Flags Affected | ||||||||
---|---|---|---|---|---|---|---|---|
B | ALT1 | ALT2 | O/V | S | CY | Z | ||
0 | 0 | 0 | . |
LMULT is a signed multiplication Super FX instruction. The exact speed depends on the state of the CFGR register.
LMULT utilizes the 8-bit multiplier four times.[3]
See Also
External Links
- Official Nintendo documentation on LMULT: page 2-9-73 of Book II
- example: page 2-9-74 of Book II, lbid.
- https://archive.org/details/SNESDevManual/book2/page/n155